20413001 has 4 divisors (see below), whose sum is σ = 23329152. Its totient is φ = 17496852.

The previous prime is 20412991. The next prime is 20413021. The reversal of 20413001 is 10031402.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20413001 - 2¹⁸ = 20150857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20413021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1458065 + ... + 1458078.

It is an arithmetic number, because the mean of its divisors is an integer number (5832288).

Almost surely, 2^20413001 is an apocalyptic number.

It is an amenable number.

20413001 is a deficient number, since it is larger than the sum of its proper divisors (2916151).

20413001 is an equidigital number, since it uses as much as digits as its factorization.

20413001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2916150.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 20413001 is about 4518.0749219109. The cubic root of 20413001 is about 273.2974748055.

Adding to 20413001 its reverse (10031402), we get a palindrome (30444403).

The spelling of 20413001 in words is "twenty million, four hundred thirteen thousand, one".